<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="main">
    <div id="div1">
        <p id="p2">文字1</p>
        <p>文字2</p>
        <p>文字3</p>
    </div>
    <div id="div2">
        <p>文字4-div2</p>
    </div>
</div>
</body>
<script src="index.js"></script>
</html>